Help with back flashing MHD . What is 4/2 4/3 ?

Bryans86 · 06-09-2023, 10:26 PM

I have 2 e90s and I’m back flashing the one with hybrid turbos now . However I read I’m supposed to put it under menu 4. Option 2 with a back flash . I’ve tried this on my rwd and my understanding is that’s valet mode and the car seems a lot slower etc . Even when I redid the BEF and it says successful etc . Am I missing something? I’ve search and can’t find much . And even a link to the correct post for me read will be appreciated.

dmckmc · 06-10-2023, 11:13 AM

Assuming you have JB4 installed. Menu 4/2 is correct for back end flash. Valet is 4/4. Hybrid turbos often require additional set up. I would try posting in the JB4 tech forums for help. https://www.jb4tech.com/forum/model-...tup-directions

06-09-2023, 10:26 PM	#1
Bryans86 Enlisted Member 7 Rep 32 Posts Drives: 2007 335i Join Date: Jan 2023 Location: New Hampshire iTrader: (0)	Help with back flashing MHD . What is 4/2 4/3 ? I have 2 e90s and I’m back flashing the one with hybrid turbos now . However I read I’m supposed to put it under menu 4. Option 2 with a back flash . I’ve tried this on my rwd and my understanding is that’s valet mode and the car seems a lot slower etc . Even when I redid the BEF and it says successful etc . Am I missing something? I’ve search and can’t find much . And even a link to the correct post for me read will be appreciated.
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06-10-2023, 11:13 AM	#2
dmckmc Private 59 Rep 96 Posts Drives: BMW 535i E60 (2008) Join Date: Dec 2021 Location: USA iTrader: (0)	Assuming you have JB4 installed. Menu 4/2 is correct for back end flash. Valet is 4/4. Hybrid turbos often require additional set up. I would try posting in the JB4 tech forums for help. https://www.jb4tech.com/forum/model-...tup-directions
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